<html>

<head>
  <title>Window Acceptance Tests</title>
</head>

<body>
  <p>Liirum laarum</p>
<p>
  <button class="button" onClick="window.open('window_popup.html', 'foo', 'width:200,height=100');">
     <span class="icon">Open</span>
</button>
</p>
</body>

</html>